9.8
CRITICAL
CVE-2016-5771
PHP SPL unserialize Remote Code Execution and Denial of Service
Description

spl_array.c in the SPL extension in PHP before 5.5.37 and 5.6.x before 5.6.23 improperly interacts with the unserialize implementation and garbage collection, which allows remote attackers to execute arbitrary code or cause a denial of service (use-after-free and application crash) via crafted serialized data.

INFO

Published Date :

Aug. 7, 2016, 10:59 a.m.

Last Modified :

July 20, 2022, 4:52 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Public PoC/Exploit Available at Github

CVE-2016-5771 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2016-5771 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Opensuse leap
2 Opensuse opensuse
1 Debian debian_linux
1 Php php
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2016-5771.

URL Resource
http://github.com/php/php-src/commit/3f627e580acfdaf0595ae3b115b8bec677f203ee?w=1 Patch Third Party Advisory
http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html Broken Link Mailing List
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00004.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2016-08/msg00003.html Mailing List Third Party Advisory
http://php.net/ChangeLog-5.php Patch Release Notes Vendor Advisory
http://rhn.redhat.com/errata/RHSA-2016-2750.html Third Party Advisory
http://www.debian.org/security/2016/dsa-3618 Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/06/23/4 Mailing List Patch Third Party Advisory
http://www.securityfocus.com/bid/91401 Third Party Advisory VDB Entry
https://bugs.php.net/bug.php?id=72433 Exploit Issue Tracking Vendor Advisory
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731 Third Party Advisory
https://support.apple.com/HT207170 Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

None

Python

Updated: 4 years, 7 months ago
0 stars 0 fork 0 watcher
Born at : April 7, 2020, 8:28 a.m. This repo has been linked 75 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2016-5771 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2016-5771 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Modified Analysis by [email protected]

    Jul. 20, 2022

    Action Type Old Value New Value
    Removed CVSS V3 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type http://github.com/php/php-src/commit/3f627e580acfdaf0595ae3b115b8bec677f203ee?w=1 No Types Assigned http://github.com/php/php-src/commit/3f627e580acfdaf0595ae3b115b8bec677f203ee?w=1 Patch, Third Party Advisory
    Changed Reference Type http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html No Types Assigned http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html Broken Link, Mailing List
    Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00004.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00004.html Mailing List, Third Party Advisory
    Changed Reference Type http://lists.opensuse.org/opensuse-updates/2016-08/msg00003.html No Types Assigned http://lists.opensuse.org/opensuse-updates/2016-08/msg00003.html Mailing List, Third Party Advisory
    Changed Reference Type http://php.net/ChangeLog-5.php Patch, Release Notes http://php.net/ChangeLog-5.php Patch, Release Notes, Vendor Advisory
    Changed Reference Type http://rhn.redhat.com/errata/RHSA-2016-2750.html No Types Assigned http://rhn.redhat.com/errata/RHSA-2016-2750.html Third Party Advisory
    Changed Reference Type http://www.debian.org/security/2016/dsa-3618 No Types Assigned http://www.debian.org/security/2016/dsa-3618 Third Party Advisory
    Changed Reference Type http://www.openwall.com/lists/oss-security/2016/06/23/4 Release Notes http://www.openwall.com/lists/oss-security/2016/06/23/4 Mailing List, Patch, Third Party Advisory
    Changed Reference Type http://www.securityfocus.com/bid/91401 No Types Assigned http://www.securityfocus.com/bid/91401 Third Party Advisory, VDB Entry
    Changed Reference Type https://bugs.php.net/bug.php?id=72433 Exploit, Vendor Advisory https://bugs.php.net/bug.php?id=72433 Exploit, Issue Tracking, Vendor Advisory
    Changed Reference Type https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731 No Types Assigned https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731 Third Party Advisory
    Changed Reference Type https://support.apple.com/HT207170 No Types Assigned https://support.apple.com/HT207170 Third Party Advisory
    Removed CPE Configuration OR *cpe:2.3:a:php:php:*:*:*:*:*:*:*:* versions up to (including) 5.5.36 *cpe:2.3:a:php:php:5.6.0:alpha1:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.0:alpha2:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.0:alpha3:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.0:alpha4:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.0:alpha5:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.0:beta1:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.0:beta2:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.0:beta3:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.0:beta4:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.1:*:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.2:*:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.3:*:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.4:*:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.5:*:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.6:*:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.7:*:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.8:*:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.9:*:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.10:*:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.11:*:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.12:*:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.13:*:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.14:*:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.15:*:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.16:*:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.17:*:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.18:*:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.19:*:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.20:*:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.21:*:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.22:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:a:php:php:*:*:*:*:*:*:*:* versions up to (excluding) 5.5.37 *cpe:2.3:a:php:php:*:*:*:*:*:*:*:* versions from (including) 5.6.0 up to (excluding) 5.6.23 *cpe:2.3:a:php:php:*:*:*:*:*:*:*:* versions from (including) 7.0.0 up to (excluding) 7.0.8
    Added CPE Configuration OR *cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:* *cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Jan. 05, 2018

    Action Type Old Value New Value
    Added Reference http://rhn.redhat.com/errata/RHSA-2016-2750.html [No Types Assigned]
  • CVE Modified by [email protected]

    Nov. 28, 2016

    Action Type Old Value New Value
    Added Reference http://lists.opensuse.org/opensuse-updates/2016-08/msg00003.html [No Types Assigned]
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00004.html [No Types Assigned]
    Added Reference http://www.debian.org/security/2016/dsa-3618 [No Types Assigned]
    Added Reference http://www.securityfocus.com/bid/91401 [No Types Assigned]
  • CVE Modified by [email protected]

    Sep. 27, 2016

    Action Type Old Value New Value
    Added Reference https://support.apple.com/HT207170
    Added Reference http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html
  • CVE Modified by [email protected]

    Aug. 24, 2016

    Action Type Old Value New Value
    Added Reference https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731
  • Modified Analysis by [email protected]

    Aug. 10, 2016

    Action Type Old Value New Value
    Added CPE Configuration Configuration 1 OR *cpe:2.3:a:php:php:5.6.0:alpha1:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.0:alpha2:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.0:alpha3:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.0:alpha4:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.0:alpha5:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.0:beta1:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.0:beta2:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.0:beta3:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.0:beta4:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.1:*:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.10:*:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.11:*:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.12:*:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.13:*:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.14:*:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.15:*:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.16:*:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.17:*:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.18:*:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.19:*:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.2:*:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.20:*:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.21:*:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.22:*:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.3:*:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.4:*:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.5:*:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.6:*:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.7:*:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.8:*:*:*:*:*:*:* *cpe:2.3:a:php:php:5.6.9:*:*:*:*:*:*:* *cpe:2.3:a:php:php:5.5.36:*:*:*:*:*:*:* (and previous)
    Added CVSS V2 (AV:N/AC:L/Au:N/C:P/I:P/A:P)
    Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type http://php.net/ChangeLog-5.php No Types Assigned http://php.net/ChangeLog-5.php Release Notes, Patch
    Changed Reference Type http://www.openwall.com/lists/oss-security/2016/06/23/4 No Types Assigned http://www.openwall.com/lists/oss-security/2016/06/23/4 Release Notes
    Changed Reference Type https://bugs.php.net/bug.php?id=72433 No Types Assigned https://bugs.php.net/bug.php?id=72433 Vendor Advisory, Exploit
    Added CWE CWE-416
  • Initial Analysis by [email protected]

    Aug. 09, 2016

    Action Type Old Value New Value
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2016-5771 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2016-5771 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

1.38 }} 0.22%

score

0.86146

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability